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New methods of dating in archaeology

Dergachev V. A., Vasiliev S.

Geochronometria

2004

Vol. 23

39-43

A modification of statistical method to determine the relative age of wood samples based on the analysis of dendroseries has been developed. The main difference of the method proposed here from the one used earlier lies in the fact that there is the possibility to match several samples simultaneously. Using the methods of statistical analysis, we have the possibility to ascertain what is reliability of determination of the relative age. Approaches used in our method are typical for regression analysis. The correlation coefficient between the analyzed sample and the group of matching samples (the comparison groups) serve as a measure concordance. It is so-called multiple correlation coefficient. The Fisher F-statistics is used to determine the significance of matching. The method is applied for cross-dating of wood samples of archaeological monuments in the Southern Siberia.

Tree-rings, "wiggle matching" and statistics in the chronological studies of Scythian age sites in Asia

Vasiliev S., Bokovenko N. A., Chugunov K. A., Dergachev V. A., Sementsov A., Sljusarenko Yu., Zaitseva G.

Geochronometria

2001

Vol. 20

61-68

A new method of cross-dating of wood samples is suggested. Based on the classical methods of spectral estimating, it uses the average cross-spectral density as a function of relative position of series. This procedure being not sensitive to phase shifts in data may be instrumental for the cross-dating of samples originating from different areas. The method was tested on Scythian tombs located in Southern Siberia, Central Asia and Kazakhstan, with the emphasis on the "Royal" barrows which included well preserved wood structures. For well-preserved timber samples, the accuracy in relative age estimations can reach a single year. The wiggle matching method has been used for a reliable assessment of the calendar-scale time.